Supervision: Hussein Esfahlani

Project type: Semester project (master) Master thesis

Finished

Metamaterials are engineered materials with a sub-wavelength structure that enables extra-ordinary propagation and manipulation of waves. Current developments using electrodynamic loudspeakers as unit-cells allows for a wide range of control: depending on the electrical load applied to the loudspeaker, its acoustic properties, such as reflexion, absorption and transmission, can be altered.

The purpose of this project is to explore the concept of electroacoustic unit cell, and design a variable electrical load in order to realize a unit cell that possesses a unitary transmission coefficient, and a programmable phase. Such unit cell would then be able to be used as a basic bulding block for 1D and 2D electroacoustic metamaterials.

Profile: Electrical engineering, Micro-engineering, Physics, Mechanics

Prerequisites: Electroacoustique (BA5) or Audio Engineering (MA1)

Context: Theory (25%), design (60%), measurement (25%)